I like working with transparency films, but as noted, processing is becoming an issue. When my local lab quite running E-6 I bought a Kodak kit, but I still have my stockpile of unprocessed film to work through.
The hybrid nature of minilabs has made printing from slides much easier, since the machines don't care whether you're starting with a positive or negative now. But that's a hybrid process that is OT for APUG.
Sides are great projected, it's how they are meant to be viewed after all. Just admiring on a light table works too, but is kind of limiting. However, rigging up a projector can be a bit of a pain, and projectors for anything larger than 2x2 mounts are not common.
My preference is the hybrid approach, my current house doesn't have a good space for projection, and my projector has lived in the attic now for a long, long time.